Mercury-relay.



M. GAHL.

MERCURY RELAY. APPLICATION FILED MAY 26, 1917.

1,260,363. Patented Mar. 26, 1918.

2 SHEETS-SHEET 1.

M. GARL.

MERCURY RELAY.

APPUCAHON FMED mAY2s.19LL

1,260,363. Patented Mar. 26,1918.

2 .SHEETS-SHEET'Z- INVENTOR" WITNESSES z ATTORNEY cups when in lowered position.

MANIOUS GARL, AKRON, OHIO.

MERCURY-RELAY.

Specification of Letters Patent.

Patented Mar. 26, 1918.

Application filed May 26, 1917. Serial No. 171,184.

To all whom it may concern Be it known that I, MANIOUS GARL, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented a new and useful Mercury- Relay, of which the following is a specification.

The object of my inventionis toprovide a novel relay containing mercury cups at which point the circuit is opened and closed; to provide a plurality of solenoids having projecting cores in proximity to opposite sides of novel pivoted armatures; and to provide novel means for mounting such apparatus and arranging the electrical connec= tions whereby it is adapted for a multiplicity of uses in connection with electrical alarms and electrical signaling apparatus.

1 attain the object of my invention by the mechanism illustrated in the accompanying drawings, in Which- Figure 1 is a top plan view of my relay, the cover of the casing being open; Fig. 2 is a vertical section of same; Fig. 3 is a diagrammatic view of an open circuit having two relays on the circuit; and Fig. 4 is a diagrammatic view showing. a closed ringing circuit.

Like. characters of reference designate like parts in each of the several views.

Referring to the accompanying drawings 1 provide suitable relays such as casing 1 which is provided with base 3 and lid 2; At opposite sides of the casing I provide suitablecups of mercury 5, mounted in any suitable manner, as in block 6 or in base 8, as illustrated in Fig. 2. Electrically connected with mercury cups are binding posts 7 to which wires 8 lead. At the opposite end of the casing from mercury cups 5 I provide mercury cups 4 mounted in any suitable manner as in the base 3 or in a block similar to block 6. I provide opposite armatures 15 of the novel form illustrated having their ends downwardly turned to dip in the mercury Armatures 15 are operated by the magnetic action of the projecting cores 10 of the solenoids 11. Solenoids 11 are mounted on suitable supports 9, between which extend a bearing rod 14 on the ends of which are pivotally mounted the armatures 15. I provide suitable adjustable weights 16, slidably mounted on armatures 15 to permit of convenient and quick adjustment of the apparatus. Electriringing key 17 is pulled means for mounting the.

cally connected with solenoids 11 are binding posts 12 from which wires 13 lead, as illustrated. I further provide suitable wires 23 electrically connected with mercury cups 4 by suitable bindingposts.

Referring to Figs. 3 and 4, contact points 18 and 19 are thrown into or out of electrical connection by the operation of ringing key 17. lln the illustrations shown in F igs. 3 and 4, 20 designates a battery or generator; 21 a switch; and 22 condensers. Referring to Fig. 3, to close the circuit down as shown by the dotted lines. Referring to Fig. 4, to open the circuit ringing key 17 is pulled up as indicated by the dotted lines. When this is done armatures 15 drop into the mercury cups as shown in Fig. 3. I have shown two relays on each circuit in Figs. 3 and 4, but as many as one to twenty may be connected on the same circuit in the same manner. The object of having an open ringing circuit, as shown in Fig. 3 is so that a large number of relays can be utilized on a circuit, to work the bells on an open or a closed battery circuit. Referring to Fig. 4 it will be understood that the generator must'be running continuously or the closed circuit battery be used. In the apparatus shown in Fig. 3 an open circuit battery can be employed as there is no current flowing through the battery or generator until the ringing key is closed, which enables the operator to give-any signal desired. The system of wiring shown in Fig. 3 is intended especially for factory work; Fig. 4 is for a closed circuit fire alarm system so that the operator at the switch board can send an alarm to the difierent rooms in the factories, stores and engine houses. It will be observed that in this figure I have connected condensers 22 across the mercury cups 5. This is to break the are where the amperage is large.

Referring to Figs. 1 and 2, the adjustable weights 16 make it possible to readily adjust the mechanism to properly balance the armatures. By providing a plurality of armatures and a plurality of mercury cups the efi'ectiveness of the apparatus is greatly increased. Referring toFig. 2 when the circuit is closed the upper portion of armatures 15 is lowered so that the ends dip into the cups of mercury 5, while the opposite ends of the armatures are elevated from cups 4, closing the circuit as shown in Fig. 4, the

armatures havii'ig been drawn into contact with the projecting cores noids 11.

What I claim is: i

1. In a relay, a combination of a plurality of solenoids havin projecting cores, a bearing rod extending etween the solenoids, ar-

of the solematures pivotally mounted to the bearing below the projecting rod and disposed in proximity to the projecting cores to be magnetized thereby, a plurality of spaced cups of mercury into which one end of an armature may di at a time, and weights adjustably mounte on the armatures.

2. In a relay, the combination of a casing,

. solenoids having oppositely projecting cores,

supports on which the solenoids are mounted, a bearing rod positioned between the solenoids having oppositely projecting cores,

supports on whlch the solenoids are mounted, a bearin rod positioned between the solenoids, a p urality of armatures pivotally be actuated by key, a source of electric power,

mounted to the bearing rod, each of the armatures having one of its arms extending below the projecting core of one ofthe solenoids and having its other arm extending above the core of the other solenoid, weights adjustably mounted on the armature, cups of mercury positioned in opposite ends of the casing and into which the ends of the armatures may dip to make and break the circuit, wires leading to and from the mercury cups, and a circuit connected with the relay, including a ringing key, a battery and a switch.

l. In a relay, the combination of solenoids having projecting cores, armatures pivotally supported in proximity to the projecting cores, each of the armatures having downwardly turned ends and having an arm extending above the projecting core of one solenoid and having the other arm extending below the core of the other solenoid to both solenoids when the cores are magnetized, a plurality of mercury cups positioned to permit one end of each armature to di in correspondin cups at the same time, wires leading to an from the relay, and a circuit connected with the relay, the circuit including a circuit ringing a switch, and condensers, substantially as set forth, and for the purposes described.

7 MANIOUS GARL. 

